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Sleep medicine doctors share when it is—and isn't—normal to wake up during the night.
There's a theory that states that waking at a certain time of night is actually a signal from your body about something going on inside. As you sleep, your body undergoes many states of activity.
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic, bifurcated, or bimodal) sleep refers to two periods, while polyphasic usually means more than two. [1]
The primary difference appears to be that pre-light cultures have more broken-up sleep patterns. For example, people without artificial light might go to sleep far sooner after the sun sets, but then wake up several times throughout the night, punctuating their sleep with periods of wakefulness, perhaps lasting several hours. [147]
If you have trouble falling asleep, wake up throughout the night or wake up feeling tired despite sleeping enough hours, these could be signs of an underlying problem or sleep disorder, the ...
Such recommendations may cast individuals with different natural sleep patterns as lazy or unmotivated when it is a much different matter for a person with a longer or delayed sleep cycle to get up earlier in the morning than for a person with an advanced sleep cycle. In effect, the person accustomed to a later wake time is being asked not to ...
Here's what they say about how our body clock, or circadian rhythm, work, and what we can do to adjust it — instead of, you know, hitting the snooze button 20 times. How does circadian rhythm work?
I was thrilled beyond belief that in a little more than a week I would be playing my first show as a professional musician. I had no idea that I was only days away from my worst nightmare—a conscious act of abuse that would fundamentally change my life. When Kim died this January, after more than a year of refusing to meet with me, I was angry.